<template>
  <div class="header" @click="showDetail" ref="header">
    <div class="content-wrapper">
      <div class="avatar">
        <img width="64" height="64" :src="seller.avatar">
      </div>
      <div class="content">
        <div class="title">
          <span class="brand"></span>
          <span class="name">{{seller.name}}</span>
        </div>
        <div class="description">
          {{seller.description}} / {{seller.deliveryTime}}分钟送达
        </div>
        <div v-if="seller.supports" class="support">
          <span class="icon" :class="classMap[seller.supports[0].type]"></span>
          <span class="text">{{seller.supports[0].description}}</span>
        </div>
      </div>
      <div v-if="seller.supports" class="support-count">
        <span class="count">{{seller.supports.length}}个</span>
        <i class="icon-keyboard_arrow_right"></i>
      </div>
    </div>
    <div class="bulletin-wrapper">
      <span class="bulletin-title"></span><span class="bulletin-text">{{seller.bulletin}}</span>
      <i class="icon-keyboard_arrow_right"></i>
    </div>
    <div class="background">
      <img :src="seller.avatar">
    </div>
    <transition name="fade">  
      <header-detail 
        :seller="seller"
        :classMap="classMap"
        v-show="detailShow" 
        @hide="hideDetail"
      >
      </header-detail>
    </transition>
  </div>
</template>
<script>
  import HeaderDetail from './components/HeaderDetail' 

  export default {
    name: 'Header',
    props: {
      seller: {
        type: Object
      }
    },
    data() {
      return {
        classMap: ['decrease', 'discount', 'special', 'invoice', 'guarantee'],
        detailShow: false
      }
    },
    // watch: {
    //   'seller'() {
    //     this.$nextTick(() => {
    //       const Header =  this.$refs.header;
    //       Header.style.backgroundImage = "url(" + this.seller.avatar + ")";
    //     })
    //   }
    // },
    methods: {
      showDetail() {
        this.detailShow = true
      },
      hideDetail() {
        this.detailShow = false
      }
    },
    components: {
      HeaderDetail
    }

  }

</script>
<style lang="stylus" scoped>
@import '~@/assets/stylus/mixins.styl'

  .header
    position: relative
    overflow: hidden
    color: #fff
    background-color: rgba(7, 17, 27, 0.5)    
    .content-wrapper
      position: relative
      padding: 24px 12px 18px 24px
      font-size: 0
      .avatar
        display: inline-block
        vertical-align: top
        img
          border-radius: 2px
      .content
        display: inline-block
        margin-left: 16px
        .title
          margin: 2px 0 8px 0
          .brand
            display: inline-block
            vertical-align: top
            width: 30px
            height: 18px
            bg-image('brand')
            background-size:30px 18px
            background-repeat: no-repeat
          .name
            margin-left: 6px
            font-size: 16px
            line-height: 18px
            font-weight: bold
        .description
          margin-bottom: 10px
          line-height: 12px
          font-size: 12px
        .support
          .icon
            display: inline-block
            width: 12px
            height: 12px
            margin-right: 4px
            vertical-align: top
            background-size: 12px 12px
            background-repeat: no-repeat
            &.decrease
              bg-image('decrease_1')
            &.discount
              bg-image('discount_1')
            &.guarantee
              bg-image('guarantee_1')
            &.invoice
              bg-image('invoice_1')
            &.special
              bg-image('special_1')
          .text
            line-height: 12px
            font-size: 10px        
      .support-count
        position: absolute
        right: 12px
        bottom: 14px
        padding: 0 8px
        height: 24px
        line-height: 24px
        border-radius: 14px
        background: rgba(0, 0, 0, .2)
        text-align: conter
        .count
          vertical-align: top
          font-size: 10px
        .icon-keyboard_arrow_right
          margin-left: 2px
          line-height: 24px
          font-size: 10px             
    .bulletin-wrapper
      position: relative
      height: 28px
      line-height: 28px
      padding: 0 22px 0 12px
      white-space: nowrap
      overflow: hidden
      text-overflow: ellipsis
      background: rgba(7, 17, 27, .2)
      .bulletin-title
        display: inline-block
        vertical-align: top
        margin-top: 8px
        width: 22px;
        height: 12px
        bg-image('bulletin')
        background-size: 22px 12px
        background-repeat: no-repeat
      .bulletin-text
        vertical-align: middle
        margin: 0 4px
        font-size: 10px
      .icon-keyboard_arrow_right
        position: absolute
        font-size: 10px
        right: 12px
        top: 8px
    .background
      position: absolute
      top: 0
      left: 0
      width: 100%
      height: 100%
      z-index: -1
      filter: blur(10px)
      img
        display: inline-block
        width: 100%
        height: 100%
    .fade-enter,
    .fade-leave-to
      opacity: 0
      background: rgba(7, 17, 27, 0)
    .fade-enter-active,
    .fade-leave-active
      transition: all .5s
      
      
      
</style>